// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_
#define CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_

#include <stddef.h>
#include <stdint.h>

#include <memory>

#include "base/memory/ptr_util.h"
#include "cc/base/cc_export.h"
#include "cc/playback/display_item.h"
#include "third_party/skia/include/core/SkColorFilter.h"
#include "third_party/skia/include/core/SkRect.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/gfx/geometry/rect_f.h"

class SkCanvas;

namespace cc {

class CC_EXPORT CompositingDisplayItem : public DisplayItem {
public:
    CompositingDisplayItem(uint8_t alpha,
        SkBlendMode xfermode,
        SkRect* bounds,
        sk_sp<SkColorFilter> color_filter,
        bool lcd_text_requires_opaque_layer);
    explicit CompositingDisplayItem(const proto::DisplayItem& proto);
    ~CompositingDisplayItem() override;

    void ToProtobuf(proto::DisplayItem* proto) const override;
    void Raster(SkCanvas* canvas,
        SkPicture::AbortCallback* callback) const override;
    void AsValueInto(const gfx::Rect& visual_rect,
        base::trace_event::TracedValue* array) const override;

    size_t ExternalMemoryUsage() const
    {
        // TODO(pdr): Include color_filter's memory here.
        return 0;
    }
    int ApproximateOpCount() const { return 1; }

private:
    void SetNew(uint8_t alpha,
        SkBlendMode xfermode,
        SkRect* bounds,
        sk_sp<SkColorFilter> color_filter,
        bool lcd_text_requires_opaque_layer);

    uint8_t alpha_;
    SkBlendMode xfermode_;
    bool has_bounds_;
    SkRect bounds_;
    sk_sp<SkColorFilter> color_filter_;
    bool lcd_text_requires_opaque_layer_;
};

class CC_EXPORT EndCompositingDisplayItem : public DisplayItem {
public:
    EndCompositingDisplayItem();
    explicit EndCompositingDisplayItem(const proto::DisplayItem& proto);
    ~EndCompositingDisplayItem() override;

    static std::unique_ptr<EndCompositingDisplayItem> Create()
    {
        return base::MakeUnique<EndCompositingDisplayItem>();
    }

    void ToProtobuf(proto::DisplayItem* proto) const override;
    void Raster(SkCanvas* canvas,
        SkPicture::AbortCallback* callback) const override;
    void AsValueInto(const gfx::Rect& visual_rect,
        base::trace_event::TracedValue* array) const override;

    int ApproximateOpCount() const { return 0; }
};

} // namespace cc

#endif // CC_PLAYBACK_COMPOSITING_DISPLAY_ITEM_H_
